摘要 |
PURPOSE:To facilitate the replacement of new and old sleeves, by inserting a ceramic sleeve in the hole of a perforated plate shaped metal structure and fixing the protruded end part from the hole of the aforementioned sleeve to the metal structure by a fixing jig comprising an elastic member. CONSTITUTION:A spring 2 is provided to a ceramic sleeve 1 along the inner surface of the flange part thereof and a cushion material 6 is mounted to the outer peripheral surface of the barrel part of the sleeve 1 and the sleeve 1 is inserted in the hole 8 of a perforated metal plate 3. Subsequently, the spring 2' is enlarged by the V-shape fitting 7 of a fixing jig 4 and the V-shape fitting 7 is mounted to the sleeve 1 so as to be contacted with the projection 5 of said sleeve 1. By this method, the thermal expansion difference between the hole 8 of the perforated metal plate 3 and the ceramic sleeve 1 in the diameter direction is absorbed by the cushion material 6. As the cushion material 6, one formed by forming a fiber such as a metal fiber or a glass fiber into a sheet such as cloth or a net is used in combination. |